{"product_id":"renthal-520-50t-ultralight-rear-sprocket-150u-520-50gbha-for-yamaha-yz125-x-g-yz250-f-x-yz450f-fx-and-wr250-450f","title":"Renthal 520-50T UltraLight Rear Sprocket 150U-520-50GBHA for Yamaha YZ125\/X\/G, YZ250\/F\/X, YZ450F\/FX and WR250-450F","description":"Renthal UltraLight Rear Chainwheels are CNC machined from 7075 T6 aluminum to extremely tight tolerances, 66% lighter than steel. Computer engineered and tested to ensure a precise fitment, concentricity and load dispersion with tooth profiling to provide maximum power transfer.  A combination of high strength base material, cutting edge manufacturing methods and exceptional hardwearing surface treatments its clear to see why Renthal's light weight all aluminum rear sprockets can be found on the rear wheels of many factory race team machines.\n\u003cp\u003eThe Renthal 150U-520-50GBHA UltraLight Rear Sprocket is a CNC-machined aluminum rear chainwheel designed for powersports applications. It features a 520 chain size and 50 teeth, with a hard-anodized finish identified by the GBHA part designation.\u003c\/p\u003e\u003cp\u003eManufacturer part number: 150U-520-50GBHA. Vendor part number: 150U-520-50GBHA. This rear sprocket is listed for fitment on 1999-2024 Yamaha YZ125, YZ125X, YZ125G, YZ250, YZ250F, YZ250X, YZ450F, YZ450FX, WR250F and WR450F models. Verify the exact year, model and existing chain and sprocket configuration before installation.\u003c\/p\u003e\u003cp\u003eRenthal manufactures the UltraLight rear chainwheel from 7075-T6 aluminum using computer-engineered production methods and tight machining tolerances. The design focuses on precise fitment, concentricity, load dispersion and tooth profiling for efficient power transfer. Its lightweight aluminum construction is stated to be 66% lighter than steel, while the hardwearing surface treatment supports durability in demanding riding conditions.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: Renthal\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 150U-520-50GBHA\u003c\/li\u003e\n\u003cli\u003eVendor part number: 150U-520-50GBHA\u003c\/li\u003e\n\u003cli\u003eApplication: Rear sprocket for powersports use\u003c\/li\u003e\n\u003cli\u003eChain size: 520\u003c\/li\u003e\n\u003cli\u003eTooth count: 50\u003c\/li\u003e\n\u003cli\u003eMaterial: CNC-machined 7075-T6 aluminum\u003c\/li\u003e\n\u003cli\u003eFinish: Hard anodized\u003c\/li\u003e\n\u003cli\u003eConstruction: UltraLight design stated to be 66% lighter than steel\u003c\/li\u003e\n\u003cli\u003eEngineering: Computer engineered and tested for precise fitment, concentricity and load dispersion\u003c\/li\u003e\n\u003cli\u003eTooth profile: Designed to provide efficient power transfer\u003c\/li\u003e\n\u003cli\u003eFitment: 1999-2024 Yamaha YZ125, YZ125X, YZ125G, YZ250, YZ250F, YZ250X, YZ450F, YZ450FX, WR250F and WR450F\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cbr\u003e\n\u003cbr\u003e\nAir Freight Prohibited: false\u003cbr\u003e\nNot Carb Approved: false\u003cbr\u003e\nLtl Freight Required: false\u003cbr\u003e\nProp 65: Unknown\u003cbr\u003e\nPart Type: powersports\u003cbr\u003e\nEpa: N\/A\u003cbr\u003e\nCarb Acknowledgement Required: false\u003cbr\u003e\nRegular Stock: false\u003cbr\u003e\nUnits Per Sku: 1","brand":"Renthal","offers":[{"title":"Default Title","offer_id":68304147906795,"sku":"596935","price":93.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/0d6e1b2c62b15a5e86ba8b9e69139acbL_806b4c84-3edd-41c8-8ba1-dbc52ea0cc5e.jpg?v=1793258482","url":"https:\/\/ctracingservices.com\/products\/renthal-520-50t-ultralight-rear-sprocket-150u-520-50gbha-for-yamaha-yz125-x-g-yz250-f-x-yz450f-fx-and-wr250-450f","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}